Shack News are reporting that the problem with nVidia graphics cards running AA in Half Life 2 has been fixed, at least according to a Valve employee in an IRC chat session.

The HL2DB forums have a recap of a recent Half-Life 2 IRC chat event. Among the many things mentioned (and there's some good stuff), one of the Valve guys mentions the anti-aliasing problem which had so many people's panties in a twist, is now fixed. On all cards. So look forward to AA goodness. Thanks jd.